Cant decide on what power scope to put on top of my 7mm STW?what power scope are yall using to engage targets 100-1000yrds?
mainly my hunting shots will 100-400 and target shooting up to 1000yrds

Kinda put the 1000 yards deal on the back burner! 100-400 yard shots can be covered by "most" of the quality brand scopes out today. Nikon; Leupold; Weaver; Zeiss ( I left out NF because of the $$$ )

1000 yard shots ( other than lobbing; plinking) are best handled with REAL equipment and here is where the Night Force; Zeiss; high end Leupold..etc...etc scopes come in. The best handloads and practices are required.

Generally, I like 2.5-8x from 0-400 yards, 3.5-10x 100 100-700 yards, my partners 4.5-14x has an edge in the 600-800 range. I'm looking in the 5-25x range to begin exploring the 800 out targets. Obviously there is overlap, and local conditions will influence choices. We have probably clung to lower powers as we have a lot of heavy cover.